Grodan Gro Block Improved GR6.5 Small 4" w/Hole, 4" x 4" x 2.6" Strip - Case of 216 spl_magfan excellent drainage and is specially

excellent drainage and is specially formulated with a controlled release fertilizer that feeds plants for up to six months

The S-Series of inline exhaust fans provide the power and flexibility needed for residential and commercial applications

A quiet blower fan kit designed to boost airflow coming from your home's fireplace

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Grodan Gro Block Improved GR6.5 Small 4" w/Hole, 4" x 4" x 2.6" Strip - Case of 216 spl_magfan excellent drainage and is speciallyGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan Gro Blocks Improved with Grodans Advanced Wetting Agent. These leading edge blocks have the optimal fiber structure and physical properties for crop uniformity, more